Elevator-machine.



No. 866,820 Y PATBNTED SEPT. 24, 1907. G. L. SMITH.

ELEVATOR MACHINE.

APPLIULTIOH FILED AUG.11, 1906. BEIEWED JULY 12,1907.

JAU/EN'TOR.

GEORGE L. SMllH, OF CHICAGO, ILLINOIS.

ELEVATOR-MACHINE Specification of Letters Patent.

Patented Sept, 24., 190?".

Application filed AHgflE 11, 1906, Serial No, 330,215. Renewed July 12, 190?, Serial 1C0. 383,516

"L it may concern:

' n.1, '3 moon L. SMITH, a. subject of the him. and Itch \d, and r. resident of of Cook, State of Illinois, have inventnl useful Improvements in Elevatoruch the following is a specification.

n relates to elevator mechines, but more electric type of machines; and the improvements are, .t, to produce a ma- "ompac't so he to tape up a minimum orspuce in the setting, and second, to if. arrangement of gearing thereto whereby a. maxim '21 range of speeds for the cable drum may be had r: mum amount of change in pitch diamepemting gears. I accomplish these objects anism hereinirfter'described, and which is he accompanying drawing in which:

cuts a side VlGW of the machine partly hi is s front end view of the some, to further illustrate the arrangement numerals refer to similar parts .ral views.

io'uiued on and secured to a bed plate 1, orts 2 and 3, each being provided with an 1, having a. roller bearing 5 mounted pen the-latterrotntes thepable drum (5,

snges r and 8, secured thereto.

ial line with the drum is a motor having a which rotates in bearings 12 and 13,

secured oports 2 and 3 respectively, and also an auxiliary u 14, secured to the drum. The field frame 15, 01 e motor with its exciting coils, is secured to the i1 3: ol the cable drum and rotates therewith as do also the brushes and brush holders 16, for the armature.

On m flange 8, and suitably insulated therefrom and lrom each other, are secured four copper bands iich being electrically connected with the and two with the armature brushes, and

ource oi current supply. pulley for the motor to which may be the well-known forms of electromechanl'O lit-loge i, on support 2, is an internal tooth gear 20, and adjacent :0 this get-r and secured to the drum is moiher internal tooth gear 53], and the two difh diameter so as to vary in number of teeth to the xtent of one, two or three teeth according to the gear rat-lo desired. Between the bearings 12, and 14, and rotatably mounted on the armature shaft, are a air hubs Liuud 21-}, provided with a balancingweight 24, and arms 25 and 2s. Rotstu arms is a shaft 27, to w loll are semi-ed 1 7 "s and 29, which latter therefore m fixed relation toward each other. These A gears also differ? in pitch diameter and number to the some extent as the inter l tooth gear gear 28, completes the gearing. it will he observed, t rat when the gee in pitch diameter so as to render i tooth the rotation ol' the armature rotate very slowly, suitable ior lio' differing two teeth the speed is practitthree teeth, trehled, etc. thus ordi i o speeds with a minimum ametel' of the gears. mounting the motor or prime drum and employing a system. of driv r J manner indicated, a. ve y (xlm mct for H )l machine, and one that will consume u minimum amount of lioor space, is secured.

Having thus particularly set forth a. construction to embody the essential features of my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. In an elevator machine, in combination, :1. D158, 51 of standards mounted thereon and l'erminutl bearings, an annular flange secured Lu ouch hearings on sold flanges, :1 cubic drum rerolul. y mou: .u. at} on said roller bearings, an itllllllllll' internal tooth secured to one of said flanges, on iniei'nu! LOwlll ge cured to said drum, arr-1m adjacent to said rock but 01. (littering pitch diameter therefrom, 11. motor l'evoluhly mounted on the interior oi the drum, a shaft or said mot riting; in said central hearings, a frsmc work rotatuhly mounted about said motor shaft. a shaft carried by sold framework, A planetary gear lOlldtRlJly mounted on said shaft and in mesh with said rack; 11 second planetary gear mounted on said shaft ut the side of suid first planetary gear and in mesh with old internal tooth gear, means for securing-tho plunotury gears together so as to prevent their relative movement, menus operatively connccting said motor shaft with said planetary gears, a means [or conducting power to said motor om u sou of supply.

2. In an elevator machine in combination :1 base. a pair or standards mounted thereon and terminating in central hearings, an annular flange Secured to such standard, roller bearings on said flanges, a cable drum revolubly mounted on said roller bearings, u motor revolubly mounted in the interior of sold drum and on sold central hearings, u gearing operurively connecting said motor with the drum, and means whereby power is conducted to said, motor.

3. In an elevator machine in combination, a base, It pair of standards mounted thereon and terminating in central hearings, an annular flange secured to each standard, a cable drum, annular flanges; whet-shy said cable drum lzi revolubly mounted on the flanges secured to said stand- 1 ards; a motor reyolubly mounted in the interior or the drum land on said central bearings, a gearing operutlvely connecting the cable drum with the motor, our hands suitably mounted on the peripheral surface of a flange seerence oi e causes the drum to ed that by ol the CallJlG planetary gear rotatably mounted thereon,'and in mosh i with said rack, 11 second planetary gear mounted on said shalt at the side or said first planetary gear, and in" mesh with said internal tooth gear, means for securing salt"- planetary ents together so as to prevent their relativ movement, and means operatively connected with tie motor. whereby the planetary gears are rotated.

Signed at Chicago, county of Cook, State at Illinois th jl s.v 8th day of August 1906.

. on'oRGE L. sm'rn.

Witnesses v y ISABELLE GInsoN, JOHN A.-Bnrrs. 

